Access and VBA

I am picking up from where another person has left off in creating a GUI in Access using VBA. I have no background in this so it’s taking a while. I have created a “Browse” button that allows a user to pick a directory where they want to save a file and it displays the path in a message box (code taken from http://j-walk.com/ss/excel/tips/tip29.htm), but now i want to show that path in a textbox before saving it. There is already a textbox in the GUI that allows the user to manually type in the path followed by the filename – i would like to automatically update this textbox with the chosen path. Is this possible and how do i do it?